Picassa Comprimised, Flickr Sucks

Well, you could continue to use Flickr and look at your stuff with fluidr or flickriver, if you like how they look. Of course, people would still be able to look at your stuff using the terrible new flickr interface, so that wasn't a solution for me.

You could set up a second google account just for your picasa use.

500px I think has a free tier; trovebox.com has a free tier, I think, and I like that it's open-source but but I don't like the way the site looks.

Other then that, I'm out of ideas for free sites. I eventually decided to pay for Zenfolio to get away from Flickr. Smugmug is good too, if you don't mind paying. It's not a huge amount of money.